Slitting-machine.



No. 741,418,. PATENTED OUT. 13. 1903.

' H. L. STALEY.

SLITTING MACHINE.

APPLIUATION FILED JAN. 31, 1903.

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N0 MODEL.

ATTORNEY.

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PATENTED 001. 13, 1903.

H. L. STALEY.

SLITTING MACHINE.

APPLIOATION FILED JAN. 31, 1903.

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N0 MODEL.

WzTNESSES; @M' 1% NW INVENTOR.

ATTORNEY Patented October 13, 1903.

rear prion HARRISON L. STALEY, OF MARTINSVILLE, INDIANA.

SLITTING=WIACHINE.'

SPIEGIFIGATION forming part of Letters Patent No. 7&1,418, dated October 13, 1903.

Application filed January 31,1903. Serial No. 141.261. (No model.)

To aZZ whom it may concern:

Be it known that I, HARRISON L. STALEY, a citizen of the United States, residing at Martinsville, in the county of Morgan and State of Indiana,have invented new and useful Improvements in Slitting-Machines; and I do declare the following tobe a full, clear, and exact description of the invention, reference I being had to the accompanying drawings, and

to the letters and figures of reference marked thereon, which form a part of this specification.

The invention relates to machines for slitting slabs or sheets of various substances, so as to reduce the same to strips that may be used in various ways in manufactures; and the invention has reference more particularly to machines that are designed for slitting slabs of bark, so as to produce strips of suitable widths adapted to be split or shaved to form thin narrow ribbons of the inner side of the bark.

The object of the invention is to improve the construction of machines of the abovementioned character, especially with reference to the parts that directly cooperate and act upon the material to be severed into strips, to the end that such machines may be cheaply constructed and maintained and also be durable and economical in use.

With the above-mentioned and minor objects in View the invention consists in a novel form. of construction of splitting devices and also in the novel parts and combination and arrangement of parts, as hereinafter particularly described, and pointed out in the appended claims.

Referring to the drawings, Figure 1 represents a front elevation of a machine constructed substantially in accordance With my invention; Fig. 2, an end elevation of the right-hand or head end of the machine; Fig. 3, a rear elevation of the machine; Fig. 4, an elevation of the left-hand end of the machine; Fig. 5, a vertical longitudinal sectional view in a plane centrally of the splitting devices, the supporting-legs being broken away; Fig. 6, a transverse vertical sectional view in a plane through the splitting and the feeding devices; Fig. 7, a horizontal sectional View in a plane above the feed-roll and the splitting-knives, showing a plan of the machine-frame and other parts; Fig. 8, a fragmentary central sectional detail view, showing the construction of the splittingknives and cooperating parts; and Fig. 9, a fragmentary central sectional detail view, showing the construction of the roll against which the splitting-knives operate in slitting bark.

Similar reference characters indicate corresponding parts in the several figures of the drawings.

In construction a frame comprises two upright end'members A and A substantially alike, connected by horizontal base members a and top tie-bars Z), having feet I), the frame being provided with suitable supporting-legs d. The end members have each two openings designed as vertical slideways 1 and 2, extending to larger openings below. The feet I) span the tops of the slideways and also serve as caps therefor. A feed-table B,

having a gage c, is attached to the front portion of the frame, and a table 0 is situated at the rear portion thereof.

A rotative shaft D is suitablysupported by the frame and is provided with a pair of pulleysfand g, one of which is loose and the other tight on the shaft,and a pinion h,secured to the shaft adjacently to the pulleys. In a plane above the shaft'D in the front portion of the frame a rotative shaft E is suitably supported in fixed bearings and is provided with a fluted feed-roll F near one end thereof and a gear-wheel 'i, meshing with the pinion h, to be driven thereby. An idler-shaft G, having a roll H, is rotatively mounted. above the shaft E in suitable jOllIIlEtl-bOXGSjj, that are movably mounted in the slideways 1 and provided with springs It for forcing the roll H toward the roll F. The roll I-I rides (in operation) on the bark or other fed substance and is thereby rotated.

In the rear portion of the frame, approximately in the same horizontal plane as the each two disks, a nut O, engaging a thread if on the shaft, securing the disks and the washers on the shaft against a suitable stopcollar. In a plane above the shaft I is a rotative shaft J, provided with a pinion m, meshing With the pinion Z for driving the shaft I and the splitting-knives, and the shaft is also provided with a roll M for opposing the knives, which roll is secured to the shaft by means of a nut P engaging a thread u 011 the shaft. The roll is composed of a suitable number of disks 2;, having beveled edges 21) at both sides thereof, so that grooves s are formed in the surface of the roll oppositely to the knives. The shaft J is supported in movable journal-boxes n n, mounted in the slideways 2 and held adjustably by means of rods K, having nuts 19 and q engaging the caps b. A gear-Wheel r is secured to the shaft J and meshes with the wheel t', whereby the shaft J may be driven. The grooves in the roll M are filled with suitable packing Q, against which the knives may run.

The frame is provided with horizontal members 0c and y, to which a number of slats R are secured that extend from the table 0 nearly to the table B, the extremities of the slats being curved downwardly. Similar shorter slats S are also secured to said members and extend from the table 0 nearly to the feed-rollF, or nearly to the upper portion thereof, between the knives L and above or upon the washers N. It will be observed that power'is applied from the shaft D to the shaft E, and thereby to the shaftiJ, from which it is transmitted to the shaft I, the shafts I and J rotating at the same speed. The knives L are greater in diameter than the roll M, and consequently the peripheral velocity .of the knives exceeds that of the roll, resulting in sliding movements of the knives against the opposing roll, so that the knives may cut as well as cleave or wedge the fibers apart.

In practical use the bark (or other substance) is to be fed to the machine over the table B to the feed-rolls F and H, which will force the bark against the splitting devices, and thereby slitted or split into strips, the latter sliding upon the slats S and across the table 0. Should the slab or sheet be too broad for the splitting devices, a portion may slide on the slats R across the machine and then be brought back and slitted separately. The action of the knives on the packing Q may wear the latteraway; but the fibers from the bark will immediately fill and pack in the grooves and continue to keep the grooves full.

Having thus described the invention, what Iclaim as new is-- 1. In a slitting-machine, the combination of two pairs of rotative shafts, each pair mounted in a different vertical plane, the lower shaft of one pair being mounted in fixed bearings and having a feed-roll attached thereto and the upper shaft of the same pair being mounted in movable bearings and also having a feed-roll attached thereto, the lower shaft of the other pair being mounted in fixed bearings and having the splitting-knives attached thereto and the upper shaft of the same pair being mounted in adjustable bearings hung upon adjusting-screws and having the knife-opposing roll attached thereto, and the slats extending from the splitting-knives to the lower one of said feed-rolls and having the downwardly-curved ends directed toward said roll, substantially as set forth.

2. In a slitting-machine, the combination with the main supporting-frame, of the two opposing upright end members having each the pair of openings therein narrowed at the upper portions thereof and forming the slideways for journal-boxes, the pair of tie-bars having each the feet at the opposite ends thereof extending across a pair of said slideways and secured to said end members, one of said tie-bars having the adjusting-screws connected thereto and the other one of said tie-bars having the springs seated against the ends thereof, the pair of journal-boxes connected to said adjustingscrews and having the knife-opposing roll-shaft mounted therein, the splitting-knife shaft mounted in fixed bearings in the openings below said roll-shaft, the feed-roll shaft mounted in fixed bearings in the adjacent openings in said end members, the movable bearings in the other pair of said slideways and engaged by said springs and having the feed-roll mounted therein, and the slats extending over the splittingknife shaft to said feed-rolls and having the downwardly-curved ends directed toward the lower one of said feed-rolls, substantially as set forth.

3. In a slitting-machine, the combination with the frame and the splitting-knives, of the horizontal members attached to the frame, the tables attached to said frame, the feedrolls mounted in said frame, the relatively long and short slats secured to said horizontal members, said short slats extending from one of said tables toward said feed-rolls, and said long slats being spaced farther apart than said short slats and extending from one to the other of said tables and having downwardly-turned ends beyond said feed-rolls, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

HARRISON L. STALEY.

l/Vitnessesz J. W. ANDERSON, I. L. MITCHELL. 

